Stock 1st gear 3.78,2nd 2.06 same in 5rib,6rib, and most 3ribs.
Some of the early 3ribs had a 3.80 1st gear, but essentially all the bus trannies in the USA have the same 1-4 ratios.
They are some that have like a 4.11 and 2.33 but I believe they were European models only, very rare.
R&P
3rib:5.38 and very few rare 5.42
5rib: 4.86
6rib nose shift: 4.57
6rib: side shift in nosecone or in main case: 4.57,4.83,4.86,5.42,5.50,5.83,and 5.86.
3rib vanagon side in nose shift:5.86
They're probably some very rare like 5.14 used in some industrial applications that vw made.